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Showing 1–24 of 84 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Syncope Clear all
Completed No phase listed Observational Accepts healthy volunteers Results available

LUX-Dx Insertable Cardiac Monitor Remote Programming and Performance Study

NCT04732728
View directory record Official record
Conditions
Atrial Fibrillation, Syncope, Cryptogenic Stroke
Interventions
Not listed
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
727 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
24
States / cities
Huntsville, Alabama • Flagstaff, Arizona • Jonesboro, Arkansas + 21 more
Source: ClinicalTrials.gov public record
Updated Nov 24, 2024 · Synced Jul 21, 2026, 7:06 AM EDT
Completed Not applicable Interventional

Confirm Rx™ Versus Reveal LINQ™ - Which is More Reliable in Data Transmission? A Randomized Clinical Study

NCT03720639
View directory record Official record
Conditions
Cardiac Arrythmias, Syncope, Atrial Fibrillation, Atrial Flutter, Tachycardia, Stroke
Interventions
Abbott, Inc Confirm Rx™ versus Medtronic, Inc Reveal LINQTM
Device
Lead sponsor
Sparrow Clinical Research Institute
Other
Eligibility
18 Years and older
Enrollment
209 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
2
States / cities
Lansing, Michigan • Traverse City, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 9, 2020 · Synced Jul 21, 2026, 7:06 AM EDT
Completed Phase 4 Interventional

Syncope: Pacing or Recording in the Later Years

NCT01423994
View directory record Official record
Conditions
Syncope, Heart Block, Conduction Disorder of the Heart
Interventions
pacemaker, implantable loop recorder
Procedure
Lead sponsor
Canadian Institutes of Health Research (CIHR)
Government
Eligibility
Not listed
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 15, 2019 · Synced Jul 21, 2026, 7:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Advancing Understanding of Transportation Options

NCT04141891
View directory record Official record
Conditions
Diabetic Retinopathy, Macular Degeneration, Glaucoma, Retinitis Pigmentosa, Vision Disorders, Acute Coronary Syndrome, Implantable Defibrillator User, Congestive Heart Failure, Hypertrophic Obstructive Cardiomyopathy, Orthostatic Hypotension, Syncope, Presyncope, Narcolepsy, Dementia, Multiple Sclerosis, Parkinson Disease, Brain Injuries, Spinal Cord Injuries, Stroke, Vertigo, Dizziness, Seizures, Substance Use, Insulin Dependent Diabetes Mellitus, Arthritis, Foot--Abnormalities, Chronic Obstructive Pulmonary Disease, Obstructive Sleep Apnea, End Stage Renal Disease, Sleep Apnea, Insomnia, Restless Legs Syndrome
Interventions
Driving Decision Aid, Older Drivers Website
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
529 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
3
States / cities
La Jolla, California • Aurora, Colorado • Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 20, 2025 · Synced Jul 21, 2026, 7:06 AM EDT
Not listed Not applicable Interventional

The Z Stitch Early Bed Rest Assessment Study

NCT06087497
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter, Supraventricular Tachycardia, Syncope, Ventricular Tachycardia
Interventions
Early mobilization
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 99 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
2
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 14, 2024 · Synced Jul 21, 2026, 7:06 AM EDT
Completed No phase listed Observational

Evaluation of Syncope,Its Diagnosis, Treatment, Outcome and Prognosis

NCT00764985
View directory record Official record
Conditions
Syncope
Interventions
Not listed
Lead sponsor
St. Luke's-Roosevelt Hospital Center
Other
Eligibility
18 Years and older
Enrollment
540 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 1, 2010 · Synced Jul 21, 2026, 7:06 AM EDT
Completed Early Phase 1 Interventional

Influence of Yoga in Patients With Neurocardiogenic Syncope

NCT01695525
View directory record Official record
Conditions
Syncope, Vasovagal
Interventions
Yoga
Other
Lead sponsor
Dhanunjaya Lakkireddy, MD, FACC
Other
Eligibility
18 Years to 60 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 29, 2015 · Synced Jul 21, 2026, 7:06 AM EDT
Completed No phase listed Observational

Autonomic Monitoring in Neurocardiogenic Syncope

NCT05907018
View directory record Official record
Conditions
Syncope, Chest Pain, Dyspnea
Interventions
Not listed
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
7 Years to 24 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 28, 2025 · Synced Jul 21, 2026, 7:06 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

MRI to Assess the Effects of Dysautonomia and Chronic Nausea on Brain Transmitters

NCT01692561
View directory record Official record
Conditions
Dysautonomia
Interventions
Not listed
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
9 Years to 18 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 26, 2018 · Synced Jul 21, 2026, 7:06 AM EDT
Completed Not applicable Interventional Results available

Syncope Decision Aid for Emergency Care

NCT02971163
View directory record Official record
Conditions
Syncope
Interventions
SynDA
Behavioral
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
30 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 25, 2020 · Synced Jul 21, 2026, 7:06 AM EDT
Terminated Phase 3 Interventional Results available

Phase 3 Clinical Effect Durability of TD-9855 for Treating Symptomatic nOH in Subjects With Primary Autonomic Failure

NCT03829657
View directory record Official record
Conditions
Symptomatic Neurogenic Orthostatic Hypotension, MSA, Parkinson's Disease (PD), Pure Autonomic Failure (PAF)
Interventions
ampreloxetine, Placebo
Drug
Lead sponsor
Theravance Biopharma
Industry
Eligibility
30 Years and older
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
20
States / cities
Sun City, Arizona • La Jolla, California • Palo Alto, California + 16 more
Source: ClinicalTrials.gov public record
Updated Jan 19, 2023 · Synced Jul 21, 2026, 7:06 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Preventing Negative Reactions in First Time Blood Donors to Encourage Subsequent Blood Donations

NCT00302900
View directory record Official record
Conditions
Syncope, Vasovagal
Interventions
Pre-Donation Water Consumption, Muscle Tensing Exercise During Donation, Muscle Tensing Exercise Prior to Donation
Behavioral
Lead sponsor
Ohio University
Other
Eligibility
18 Years and older
Enrollment
441 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2010
U.S. locations
2
States / cities
Athens, Ohio • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 5, 2016 · Synced Jul 21, 2026, 7:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Drinking Dashboard Study

NCT05630625
View directory record Official record
Conditions
Alcohol Drinking
Interventions
Drinking Dashboard
Behavioral
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 30 Years
Enrollment
169 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Jul 21, 2026, 7:06 AM EDT
Completed Phase 2 Interventional Results available

The Effect of CPC on Aborting Tilt Induced Syncope in Patients With a History of Vasovagal Syncope or Near Syncope

NCT04972123
View directory record Official record
Conditions
Syncope, Vasovagal
Interventions
CPC - Capsaicin, Phenylephrine, Caffeine, Tilt Table Test, Placebo
Drug · Diagnostic Test
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 50 Years
Enrollment
143 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 16, 2024 · Synced Jul 21, 2026, 7:06 AM EDT
Withdrawn Not applicable Interventional

Sinusoidal Galvanic Vestibular Stimulation for Neurogenic Orthostatic Hypotension / Syncope

NCT04976101
View directory record Official record
Conditions
Neurogenic Orthostatic Hypotension
Interventions
Sinosuidal Galvanic Vestibular Stimulation, Placebo
Device
Lead sponsor
Hackensack Meridian Health
Other
Eligibility
18 Years to 85 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 15, 2022 · Synced Jul 21, 2026, 7:06 AM EDT
Recruiting No phase listed Observational

Fainting Detection And Early Warning In Syncope Evaluation Study (ARISE)

NCT07502599
View directory record Official record
Conditions
Orthostatic Hypotension, Reflex Syncope
Interventions
Wearable holter monitor
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Jul 21, 2026, 7:06 AM EDT
Not listed No phase listed Observational

Observational Study of the Sleuth Implantable ECG Monitoring System

NCT00717106
View directory record Official record
Conditions
Syncope, Presyncope, Fainting, Cardiac Arrhythmia
Interventions
Not listed
Lead sponsor
Transoma Medical
Industry
Eligibility
Not listed
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2008
U.S. locations
8
States / cities
Atlanta, Georgia • Cumberland, Maryland • Lapeer, Michigan + 5 more
Source: ClinicalTrials.gov public record
Updated May 4, 2009 · Synced Jul 21, 2026, 7:06 AM EDT
Completed Not applicable Interventional

Randomized Study of Midodrine, an Alpha Adrenergic Agonist, in Patients With Neurally Mediated Syncope

NCT00004479
View directory record Official record
Conditions
Syncope
Interventions
midodrine
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
16 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1999
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 21, 2026, 7:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Novel Helmet Design in Patients With Seizures

NCT03443388
View directory record Official record
Conditions
Drug Resistant Epilepsy, Drop Seizures, Generalized Tonic Clonic Seizure, Complex Partial Seizure, Fall Due to Seizure
Interventions
Hövding inflatable helmet
Device
Lead sponsor
Michael A. Gelfand, MD, PhD
Other
Eligibility
18 Years to 60 Years
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 8, 2025 · Synced Jul 21, 2026, 7:06 AM EDT
Completed No phase listed Observational

Improving Syncope Risk Stratification in Older Adults

NCT01802398
View directory record Official record
Conditions
Syncope
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
60 Years and older
Enrollment
3,707 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
10
States / cities
Sacramento, California • Boston, Massachusetts • Royal Oak, Michigan + 7 more
Source: ClinicalTrials.gov public record
Updated Jan 23, 2019 · Synced Jul 21, 2026, 7:06 AM EDT
Completed Not applicable Interventional

PREPARE - Primary Prevention Parameters Evaluation

NCT00279279
View directory record Official record
Conditions
Tachycardia, Ventricular, Implantable Cardioverter Defibrillator (ICD), Fibrillation, Ventricular, Syncope
Interventions
Implanted Device
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
700 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
31
States / cities
Birmingham, Alabama • Mesa, Arizona • Phoenix, Arizona + 28 more
Source: ClinicalTrials.gov public record
Updated Oct 25, 2006 · Synced Jul 21, 2026, 7:06 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

AI-Enabled Direct-from-ECG Ejection Fraction (EF) Severity Assessment Using COR ECG Wearable Monitor

NCT06699056
View directory record Official record
Conditions
Ventricular Ejection Fraction, LVF, LV Dysfunction, Atrial Enlargement, Conduction Defect, Heart Failure, Valvular Heart Disease, Ischemic Heart Disease, Cardiotoxicity, Myocardial Infarction, Dilated Cardiomyopathy, HFrEF - Heart Failure With Reduced Ejection Fraction, HFpEF - Heart Failure With Preserved Ejection Fraction, Syncope, Remodeling, Cardiac
Interventions
15-minutes of sitting during COR ECG Acquistion
Device
Lead sponsor
Peerbridge Health, Inc
Industry
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
8
States / cities
Orange, California • Pasadena, California • Detroit, Michigan + 5 more
Source: ClinicalTrials.gov public record
Updated May 31, 2026 · Synced Jul 21, 2026, 7:06 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

fMRI in Blood Phobia Syncope

NCT00715065
View directory record Official record
Conditions
Syncope, Blood Injury Phobia, Autonomic Dysfunction
Interventions
fMRI Scan
Procedure
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 30 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 8, 2013 · Synced Jul 21, 2026, 7:06 AM EDT
Not listed No phase listed Observational

Evaluation of a Mobile Cardiac Outpatient Telemetry System Versus Standard Loop Event Monitor

NCT00295204
View directory record Official record
Conditions
Syncope, Pre-Syncope, Palpitations
Interventions
Not listed
Lead sponsor
Cardionet
Industry
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
13
States / cities
Bridgewater, New Jersey • Elizabeth, New Jersey • Ocean City, New Jersey + 9 more
Source: ClinicalTrials.gov public record
Updated Aug 2, 2006 · Synced Jul 21, 2026, 7:06 AM EDT